Locking-bolt



l WAT@ "lW OFHC.

WILLIAM HACKETT, F OAKLAND, CALFORNA, ASSIGNOR OF ONE-HALF T0 STEPHEN W. BAND, OF OAKLAND, CALIFORNIA.

LOCKING-BOLT.

1,385,01l. Specification of Letters Patent. Vlpg-@gmilgqed Judy 19, 31921. Application filed March 15, 1920. Serial No. 365,985.

To all whom t may concern.' posite end of the bolt is preferably eon- Be it known that l, lViLLiAM HACKETT, a structed with a vertical slotr recess 3 made citizen of the United States, and resident of to receive a pin or the like' e which accordthe city of Oakland, at No. 680V (32nd) ing to Fig. 6 and as shown in association 5 Thirty-second street, in said city, county of with the other parts of the device, has a 60 Alameda7 and State of California, have inthickness of at least two different dimensions vented a new and useful Locking-Bolt, of produced by cutting away a portion of the which the following is a specification. pin for a part of its length to leave the My invention relates to an improved lockshoulder 5. The end of the pin is also con-- `l0 ing bolt especially adapted in use as a means structed with an abutment 6 while the oppo- 65 for holding or clamping plates or the like site end is provided with a T-head 7. together without the use of the customary That form of pin shown vinF ig. 7 is more threaded bolt structures commonly employed applicable where the device is to be used as 1501- this purpose. a permanent lxture and for this reason the The primary object of the invention is to same is constructed with a recess 8 leaving 70 'provide means which may be conveniently the ends of greater thickness than the midused lor permanently or temporarily clampdie portion. Both forms of pins are adapted ing plates or the like and the existing novto be inserted in the recess 3 and in this elty renders the same especially adapted in manner coniine the washer 9 on the bolt as connection with ship building where it is well as the rocking block 10 both of which 75 desirable to clamp two or more plates tohave openings through which the bolt is gether preparatory to riveting or otherwise passed. 11 represents a wedge which is fixing. them toga-hen adapted to be introduced between the top The accompanying drawing illustrates the one or" the plates A and and the rocking preferred manner of reducing the invention block 10 to effect the desired clamping of 80 to practice: the plates. Any number of washers such as In said drawing Figure 1 is a side eleva- 9 may be used to build up the space between tion of the device. the plate A and the key 4 so that the wedge F ig. 2 is a front elevation; Fig. 3 is a plan may cooperate with the rocking block 10 to view; produce the desired results. 85

Fig. d is a longitudinal section on the line It should be noted that the' opening l`et, Fig. 3. through the rocking block 10 is slightly oill Fig. 5 is a cross section on the line 5-5 center or in other words, eccentric with the Fig 3, vertical axis of the block, t e purpose of Fig. 6 is a perspective view of one form of which will now be described. The wedge l1 90 logkmg pm, is a bifurcated member made to straddle the Fig. 7 is another form of locking pin and bolt 1 and a cross piece 12 is arranged to Fig. 8 is a cross section of another form ot prevent the wedge from sliding oil of the wedge and rocking block. bolt should the device be used in a horizontal 40 Referring to the drawing in detail A and position. In accordance with that construc- 95 represent plates with which the device tion of wedge and rocking block shown in may be used as a means for clamping them Figs. 1 to 5 inclusive, both legs 13 and 14. together either temporarily or permanently. oi the wedge 11 which straddle the bolt are The plates, especially those used in ship provided with a rabbeted edge as at 15 and 15 building are usually provided with rivet with notches or teeth 16 arranged therein7 100 openings at spaced intervals along their made to receive the fingers 17 oi' the rocking i edges or in other places in the body thereof. block 10.

i ometimes the overlapping edges of the The rocking block 10 is constructed with plates are clamped together and then again downwardly presented flanges 18 which ter 0 the two or more' thicknesses of plates are minate at one end in the fingers 17. These 105 fixed together. At any rate in using the deflanges are arranged to bridge the wedge in vice the bolt 1 is passed through two ormore order that the notches or teeth 16 therein registering openings in the plates with the may be made accessible to receive fingers head 2 thereof providing a bearing on the 17. It should be noted that the rear of the underside of the lowerniost plate. The op block 10 is constructed with a cam face or 1l0 beveled off portion as at 19 so that the same `of its length; for instance, from the lower normally only Ycontacts with the wedge at end of the recess 3 toward the end. This the pivot point 20, see Fig. 4s.` Vith the will prevent burringwhich may possibly opening through the block offcenter and he caused by the strain as mentioned on the 5 when the device is in use the torce eXerte fkeyi. lt should he considered'that the taon the block by the wedge will tend to main. pered effect will only he present on two tain the lingers 17 engaged in the notchesV sides of the shank; Jfor instance, on opposite or teeth 16 of the wedge. In this connecsides of the opening to the recess. tion, it should be noted that th'e key L1 is pre- 1 I claim: i0 sented inthe recess 3 of the holt with its 1. A locking bolt provided with a shank width ofg'reatest thickness in use. having la head at one end with its opposite To release the device ylo driving pin 1 end made to coperate with a locking elethrough the recess until its greatest thickment, said shank adapted to he passed nessz in width has been driven through the through two or more plates to he clamped t0- recess afblow inserted by a harniner or Vthe gether with the said plates confined therelike to the top of the block 10 at a point to .on hy said locking element, a block having the right of the pivot point will rock the an opening, said shank adapted to he passed block on its pivot point and disengage inthrough said opening for confining the block gers 17 from the teeth or notches 16`in the on the shank, and a slotted wedge having 20 wedge. The wedge can then loe removed teeth on opposite sides of itsV slot, said which will permit the key being withdrawn wedge adapted to straddle the shank of the and rocking block 10 and washer 9 removed. holt between said block an said plates, with In effecting the clamping action of the :means on said block engaging the teeth o' plates with the device it should he noted the wedge for maintaining the wedge in that the farther' the wedge is driven home clamping relation with the plates.

the more positive will he the engagement of 2. 'A locking holt, provided with a shank the Vfingers 17 with the notches or teeth 16. having a head at one end and a recess at ln reducing the invention to practice, it its opposite end, a keyv made to engage sai will not he necessary to rabbet the wedge 11 recess, said shank adapted to he passed Y andin this connection, attention is called to through two or more plates to he clamped Fig. Sv wherein the wedge is shown with the together with the said plates confined therelegs 13 and 11i plain across the top, and to on by said key, a rocking block also confined accommodate the rocking block 10 to this onV4 said shank and a wedge having teeth form instead of constructing the saine with alongvits sides adapted to he presented bethe downwardly presenting flanges 18, it is tween said 1clock and the said plates, with made of an equal thickness with theeXcep the ends of said block engaging said teeth tion of the hack portion which must he Afor maintaining the wedge in clamping relabeveled off as in the other formtoef'fect the tion with theplates. Y rocking action described. It should loe con- 3. A. locking holt as set forth in claim 2 40 sidered that further changes such asthis and in which the rocking block has a bevniay be resorted to without departingfrom eled under surface; whereby the saine may the spirit of the invention. ne rocked on the wedge to disengage the lnasmuch as there will he considerable edge from the teeth of the wedge.

strain on the shank of the holt 1 l will pre,-

fer to taper the end of the saine for a part WLLIAM HACKETT. 

